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If you like this challenge but it's private, for people of a much higher or lower ability/fitness level, or you think lots of people are lying about their scores, don't forget you can easily create a similar challenge for a different set of competitors, or keep it private for friends who you trust to post honest scores. If you create your own challenge you'll be able to moderate all entries as well.
Time to show off your bicycle. This challenge weighs you and your bicycle to see who has the most efficient bike/rider ratio. The lower your number, the heavier you are in relation... more details